There are several information,s already given in the question. I am answering the question based on the information,s provided. We already know that 0 degree centigrade = 273.15 degree kelvin Then 25 degrees Celsius = 273.15 + 25 degrees kelvin = 298.15 degrees kelvin.
From the above deduction, we can conclude that 300 degrees kelvin is greater than 25 degrees Celsius.